__author__ = 'Administrator'
#coding=gb18030
import string


def listfun():
    list = []
    list.insert(0, 'a1')
    list.insert(1, 'a2')
    list.insert(2, 'a3')
    list.insert(4, 'a4')
    list.append('a5')
    list.insert(6, 'x2')
    for index in list:
        print index


def createList(count):
    list = []
    for i in range(count):
        v = string.join([str(i) + 'a1'])
        list.insert(i, v)
    return list


def getName(count):
    list = createList(count)
    for index in list:
        print index
    print '==================================='
    list.remove('20al')
    for index in list:
        print index


print("out count:")
a = raw_input()
if int(a):
    getName(int(a))
